On Mar 11, 2018, at 12:32, Mojca Miklavec wrote:
> Dear Ryan,
>
> Conceptually I like the approach a lot.
>
> *However*, this will generate an incomprehensible amount of emails
> when a new build slave gets added or when some revbumps are done etc.
> In particular from the 10.5/ppc machine. The individual emails will be
> a lot more helpful, but the amount of them ...

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Well you'll only get emails for failed builds, of course. Wouldn't you want to
know if your ports failed to build on a new version of macOS?
Certainly build failure reports from old OS versions that you already know your
ports will fail on are annoying, and we should fix that in base.
> This sounds totally hacky, but one way around that I can see is to
> write a special-purpose mailer. Either a job on the buildbot or a
> special external script that iterates through all the jobs from the
> last hour from all the builders and creates build failure summaries
> for each individual developer (author/committer/maintainer). Maybe
> this could be a build job on the builder master, but I don't know how
> tricky it would get to do it.
Well we can talk about using hourly summary emails instead of individual-build
emails or whole-batch emails, but I don't see it as related to my proposal.
> How would you handle duplicate entries in the build list?
The first implementation would not alter how we handle duplicate entries. We
currently decide in portwatcher whether to schedule a build of a port, based on
whether we have already built that port at that time. Later, I would want to
implement https://trac.macports.org/ticket/55078 to cause any duplicate jobs to
exit early. Later still, we might look into removing duplicate jobs from the
queue at the beginning of a build, assuming buildbot gives us an API to do that.
> Dependency
> order could also become semi-obsolete, but that's probably a price to
> be payed.
Scheduling a batch of builds in dependency order is still an important goal,
unaffected by my proposed changes.
> I tried to play with buildNext, but I couldn't figure out how to read
> properties of the build request.
I saw your question to the buildbot mailing list. I haven't tried to use
nextBuild yet, but I found an example from the webkit project:
https://trac.webkit.org/changeset/117508/webkit/trunk/Tools/BuildSlaveSupport
And here's somebody else's nextBuild function:
https://gitlab.com/lede/buildbot/blob/8911485994d498e02302c3d474166848b0d894e0/phase1/master.cfg#L249